Process of making air-hole glassware.



No. 828,485. PATENTED AUG, 14, 1906.

W. KBENAN.

PROCESS OF MAKING A IR HOLBGLASSWARB. APPLICATION FILED MAR-17.19%. l

sEARcu aoom z isz UNITED STATES PATENT OFFICE.

WILLIAM KEENAN, OF TOLEDO, OHIO, ASSIGNOR OF ONE-HALF TO BERNARD O.GILLIGAN, OF TOLEDO, OHIO.

PROCESS OF MAKING AIR-HOLE GLASSWARE.

Specification of Letters Patent.

Patented Aug. 14, 1906.

Application filed March 17,1906. Serial No. 306.628.

To all whom it may concern:

Be it known that I, WILLIAM KEENAN, a citizen of the United States,residin at T- ledo, in the county of Lucas and gtate of Ohio, haveinvented a new and useful Process of Making Air-Hole Glassware, of whichthe following is a specification.

My process of making air-hole glassware consists in blowing glasswarehaving moldpolished portions and one or more annular portions unpolishedand studded with horns or protuberances, annealing said ware, fitting,removing said horns or protuberances, and

- finishing the edges in suitable manner.

A species of glassware produced by my process is illustrated in thedrawings, in

Figure 1 is an elevation of a lamp-chimney as formed in a mold. Fi 2 isa like view showing the chimney fitted and the horns or protuberancesremoved. Fig. 3 is a plan section on line X X of Fig. 2. Fig. 4 is anelevation of a chimney, showin the base of the horns or protuberancesannlilarl y indented; and Fig. 5 is a plan section showing the horns orprotuberances removed.

A and B, respectively, designate the socket and the shaft of thelamp-chimney, being mold-polished during the blowin operation, and areseparated by an integraT portion 0, unpolished and studded withprotuberances D. Said unpolished portion C has a wall of a thicknessequal to the portions A and B, but with the protuberances blown outthin. The glassware thus formed is annealed and fitted to size byremoving the extreme ends of A and B. The protuberances are now removedand the edges around the holes are glazed. The horns or protuberancesmay be removed 4 by grinding and the edges glazed.

The chimney illustrated in Figs. 4 and 5 has its protuberances D formedcentrally of indents E, annular to the base of the protuberances. Saidindents serve as reinforcement' around the holes and provide addi- 5tional material for glazing the edges after the rotuberanees areremoved.

What I claim is 1. The process of making air-hole lassware consisting inblowing on mold-polished 5o ware, an annular unpolished portion studdedwith protuberances, annealing said ware, fitting, removing theprotuberanoes, grinding the u h edges and glazing.

2. The process of making air-hole glassware consisting in blowing onmold-polished ware, an annular unpolished portion studded with parallelprotuberances, annealing, fitting, removing said protuberances, grindingthe rough edges and glazing.

3. The process of making air-hole glassware consisting of blowing onmold-polished ware an annular unpolished portion studded withprotuberances, said protuberances be ing each formed with an annularbase-indent, 6 5 annealing said ware, fitting, removing theprotuberanees and glazing the edges.

4. The process of making air-hole glassware consisting in blowingglassware having mold-polished portions and an integral unpolishedportion studded with protuberances, annealing said ware, fitting,removing said protuberanees and finishing the edges.

In testimony whereof I have set my hand this 15th day of March, 1906.

WILLIAM KEENAN.

Witnesses:

EDWARD N. METTLER, PETER J. METTLER.

